Contents
EM78P447N
Elan Microelectronics Corporation
Contents
Specification Revision History
General Description
EM78P447NBWM
PIN Assignment
Symbol Pin No Type Function
EM78P447NAP and EM78P447NAM Pin Description
EM78P447NAS Pin Description
Power supply
EM78P447NBP and EM78P447NBWM Pin Description
EM78P447NCK and EN78P447NCM Pin Description
Function Description
EM78P447NDK and EM78P447NDM Pin Description
2 R1 Time Clock /Counter
Operational Registers
1 R0 Indirect Addressing Register
3 R2 Program Counter & Stack
Call RET Retl Reti
Fffh
Data Memory Configuration
7 R8~R1F and R20~R3E General Purpose Register
5 R4 RAM Select Register
6 R5~R7 Port 5 ~ Port7
R5, R6 and R7 are I/O registers
Accumulator
Special Purpose Registers
8 R3F Interrupt Status Register
Control Register
TCC Rate
3 IOC5 ~ IOC7 I/O Port Control Register
Iocb Wake-up Control Register for Port6
WDT Rate
Ioce WDT Control Register
WUE
Iocf Interrupt Mask Register
Exie
TCC and WDT Block Diagram
TCC/WDT & Prescaler
I/O Ports
IOD
Reset and Wake-up
Reset
Usage of Sleep1 and Sleep2 Mode
SLEEP2 SLEEP1
Address Name Reset Type Bit
Summary of the Initialized Values for Registers
WUE7 WUE6 WUE5 WUE4
R3FISR
Exif Tcif
Iocb
Status of RST, T, and P of Status Register
Previous status before reset
Previous value before reset
Events that may Affect the T and P Status
Controller Reset Block Diagram
Interrupt
Oscillator
Oscillator Modes
Mode
Conditions
Crystal Oscillator/Ceramic ResonatorsXTAL
Summary of Maximum Operating Speeds
Fxt max.MHz
HXT
External RC Oscillator Mode
Oscillator Type Frequency Mode C1pF C2pF
LXT
Code Option Register
Code Option Register Word
PR2~PR0 are protect bits, protect type as following
Protect
Customer ID Register Word
Power On Considerations
External Power On Reset Circuit
Bit 12~0 Customer’s ID code
Reset
Residue-Voltage Protection
Instruction Set
Contw
NOP
DAA
Slep
Rrca R
Djza R
DJZ R
RRC R
Timing Diagram
AC Test Input/Output W aveform
Ta= 25 C, VDD= 5.0V±5%, VSS=
DC Electrical Characteristic
Symbol Parameter Condition Min Typ Max Unit
Items Rating
AC Electrical Characteristic
Symbol Parameter Conditions Min Typ Max Unit
Ta=- -40 C ~ 85 C, VDD=5V ±5%, VSS=0V
Device characteristic
Vih, Vil of TCC, /INT, /RESET Pin
Port5, Port6 Port7 Voh vs. Ioh,VDD=5V
Port5, Port6, and Port7 Voh vs. Ioh, VDD=3V
Vol/Iol VDD=5V
Vol/Iol VDD=3V
Vol/Iol 100
Vol/Iol
WDT
Cext=100pF, Typical RC OSC Frequency
Typical ICC1 and ICC2 vs. Temperature
Maximum ICC1 and ICC2 vs. Temperature
Typical ISB1 and ISB2 vs. Temperature
Maximum ISB1 and ISB2 vs. Temperature
EM78P447N HXT ImA
Lead plastic dual inline package(DIP)- 300 mil
Package Type Pin Count Package Size
Lead plastic dual inline skinny package(DIP)- 300 mil
Lead plastic dual inline package(DIP)- 600 mil
838
27TYP
EM78P447N